| The HP cruising range has sideways pivoting steering wheel allowing inside/outside position at helm.

Of course. But any other adjustment is an outside job, right? Is that as it should be?

| What about including sheet plastic flooring with wood print in the infusion ? Are the plastics compatible with the infusion ? There is a weight cost.

In my limited understanding and experience, all the layers, save the top bag are permeable, and must be. But there is no reason why any top treatment such cannot go on after. Its a prettier paint. Honestly a veneer might be quite attractive.

| What about velcro to the walls like a duvet during cold times in the rooms that need it ?

Interesting. But I imagine foam core will be plenty warm, compared to most other walls people experience.

I just did a project with polyioscyanurate and it was weird and neat. People putting hands against the surface (fiberglass, painted) commented they immediately notice their hands getting warm. It is just a good insulated surface. Most people do not interact with them, so are surprised.

| Infusion allows embedding all electrical wiring, LED strips and tubing in the walls. The rounded corners of the hulls seem to invite infusing a tube fitting the curvature in the four corners along the full length of the hulls that can be used as ventilation shafts, additional wiring and tubing ...

I don't mind tubing, but I would hesitate to infuse bury any infrastructure but paths and runs. And to be honest, so much is changing so fast that I would not bury any of it. I am sure once a few bigger HP's get built and outfitted, we all will have a much better set of ideas on how and why certain things need to go where, how to do it, and what our options are.